Add reconnect to client

[BrandonClapp]

Make the client more resilient when server is stopped or crashes.

Currently, when the server is stopped (or crashes for some reason), the client will crash when it tries sending a new message to the server. Perhaps when this happens, we disconnect the client and then try periodically reconnecting... i.e. every 10 seconds, try reconnecting, up to a maximum of 3 times.

[toannguyen83]

For anonymous probably ok. But once placing authentication user/pass, you'll need to either store credential locally for reconnect or they must enter credential again.